Troubled with hair fall? Here is an amazing home remedy that will arrest hair fall and will promote hair growth fast using garlic oil. Studies have shown that topical application of garlic oil stimulates hair re-growth and it is also effective in treating alopecia areata. The therapeutic property of garlic is attributed to its sulfur compounds that nourish the hair follicles and stimulate hair growth. Garlic also contains other hair friendly nutrients such as vitamins B1, B6 and C, selenium, copper, calcium and manganese.